{"vulnerability": "cve-2021-25830", "sightings": [{"uuid": "ad60e1f4-0eb9-4c2b-9a82-741172e23cc0", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-25830", "type": "seen", "source": "https://t.me/cibsecurity/24301", "content": "\u203c CVE-2021-25830 \u203c\n\nA file extension handling issue was found in [core] module of ONLYOFFICE DocumentServer v4.2.0.236-v5.6.4.13. An attacker must request the conversion of the crafted file from DOCT into DOCX format. Using the chain of two other bugs related to improper string handling, an attacker can achieve remote code execution on DocumentServer.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-03-01T18:43:22.000000Z"}, {"uuid": "292ee7df-e0da-45d8-a835-97e309585edc", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-25830", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/4625", "content": "#exploit\n1. CVE-2021-31862:\nSysAid 20.4.74 allows XSS via the KeepAlive.jsp stamp parameter without any authentication\nhttps://github.com/RobertDra/CVE-2021-31862\n\n2. Research and PoC exploits for ONLYOFFICE\n(CVE-2021-25829, CVE-2021-25830, CVE-2021-25831, CVE-2021-25832, CVE-2021-25833)\nhttps://github.com/merrychap/POC-onlyoffice/tree/master", "creation_timestamp": "2021-10-30T14:32:34.000000Z"}, {"uuid": "79d85a56-68b6-4fcc-b584-eef9d699fa09", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-25830", "type": "seen", "source": "https://t.me/cissp/4713", "content": "Threat Research\n1. Shrootless Vulnerability in MacOS (CVE-2021-30892)\nhttps://www.microsoft.com/security/blog/2021/10/28/microsoft-finds-new-macos-vulnerability-shrootless-that-could-bypass-system-integrity-protection\n2. Apple XAR - Arbitrary File Write (CVE-2021-30833)\nhttps://research.nccgroup.com/2021/10/28/technical-advisory-apple-xar-arbitrary-file-write-cve-2021-30833\n\nexploit\n1. CVE-2021-31862:\nSysAid 20.4.74 allows XSS via the KeepAlive.jsp stamp parameter without any authentication\nhttps://github.com/RobertDra/CVE-2021-31862\n\n2. Research and PoC exploits for ONLYOFFICE\n(CVE-2021-25829, CVE-2021-25830, CVE-2021-25831, CVE-2021-25832, CVE-2021-25833)\nhttps://github.com/merrychap/POC-onlyoffice/tree/master\n\nMalware analysis\n1. More Malicious NPM Libraries\nhttps://www.theregister.com/2021/10/27/npm_roblox_ransomware\n2. New AbstractEmu malware roots Android devices\nhttps://blog.lookout.com/lookout-discovers-global-rooting-malware-campaign\n\nCloud Security\nSnowcat: World\u2019s First Dedicated Security Scanner for Istio\nhttps://www.praetorian.com/blog/introducing-snowcat\n]-> https://github.com/praetorian-inc/snowcat", "creation_timestamp": "2026-09-01T17:00:36.984175Z"}, {"uuid": "3516fa51-6ad2-4182-8404-e20ddb4b03bf", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-25830", "type": "seen", "source": "https://t.me/cissp/4713", "content": "Threat Research\n1. Shrootless Vulnerability in MacOS (CVE-2021-30892)\nhttps://www.microsoft.com/security/blog/2021/10/28/microsoft-finds-new-macos-vulnerability-shrootless-that-could-bypass-system-integrity-protection\n2. Apple XAR - Arbitrary File Write (CVE-2021-30833)\nhttps://research.nccgroup.com/2021/10/28/technical-advisory-apple-xar-arbitrary-file-write-cve-2021-30833\n\nexploit\n1. CVE-2021-31862:\nSysAid 20.4.74 allows XSS via the KeepAlive.jsp stamp parameter without any authentication\nhttps://github.com/RobertDra/CVE-2021-31862\n\n2. Research and PoC exploits for ONLYOFFICE\n(CVE-2021-25829, CVE-2021-25830, CVE-2021-25831, CVE-2021-25832, CVE-2021-25833)\nhttps://github.com/merrychap/POC-onlyoffice/tree/master\n\nMalware analysis\n1. More Malicious NPM Libraries\nhttps://www.theregister.com/2021/10/27/npm_roblox_ransomware\n2. New AbstractEmu malware roots Android devices\nhttps://blog.lookout.com/lookout-discovers-global-rooting-malware-campaign\n\nCloud Security\nSnowcat: World\u2019s First Dedicated Security Scanner for Istio\nhttps://www.praetorian.com/blog/introducing-snowcat\n]-> https://github.com/praetorian-inc/snowcat", "creation_timestamp": "2026-09-02T01:04:21.781270Z"}]}